Earthdata
CMR Virtual Directories

Ground-Based Global Navigation Satellite System (GNSS) Observation Data (30-second sampling, hourly files) from NASA CDDIS
temporal
2021
12

Day	File Count
01	191
02	182
03	16
04	184
05	192
06	192
07	191
08	191
09	192
10	192
11	192
12	192
13	192
14	192
15	192
16	192
17	192
18	192
19	192
20	189
21	189
22	169
23	171
24	191
25	192
26	192
27	192
28	192
29	192
30	192
31	175

NASA Links

NASA Official: Stephen Berrick
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